2006 Infiniti Q45 vs. 2004 Opel Speedster
To start off, 2006 Infiniti Q45 is newer by 2 year(s). Which means there will be less support and parts availability for 2004 Opel Speedster. In addition, the cost of maintenance, including insurance, on 2004 Opel Speedster would be higher. At 4,490 cc (8 cylinders), 2006 Infiniti Q45 is equipped with a bigger engine. In terms of performance, 2006 Infiniti Q45 (340 HP @ 6400 RPM) has 143 more horse power than 2004 Opel Speedster. (197 HP @ 5500 RPM). In normal driving conditions, 2006 Infiniti Q45 should accelerate faster than 2004 Opel Speedster. With that said, vehicle weight also plays an important factor in acceleration. 2006 Infiniti Q45 weights approximately 315 kg more than 2004 Opel Speedster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2006 Infiniti Q45 (452 Nm @ 4000 RPM) has 202 more torque (in Nm) than 2004 Opel Speedster. (250 Nm @ 1950 RPM). This means 2006 Infiniti Q45 will have an easier job in driving up hills or pulling heavy equipment than 2004 Opel Speedster. 2006 Infiniti Q45 has automatic transmission and 2004 Opel Speedster has manual transmission. 2004 Opel Speedster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2006 Infiniti Q45 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 Infiniti Q45 | 2004 Opel Speedster | |
| Make | Infiniti | Opel |
| Model | Q45 | Speedster |
| Year Released | 2006 | 2004 |
| Body Type | Sedan | Convertible |
| Engine Position | Front | Middle |
| Engine Size | 4490 cc | 1910 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 340 HP | 197 HP |
| Engine RPM | 6400 RPM | 5500 RPM |
| Torque | 452 Nm | 250 Nm |
| Torque RPM | 4000 RPM | 1950 RPM |
| Engine Bore Size | 93 mm | 86 mm |
| Engine Stroke Size | 82.7 mm | 86 mm |
| Engine Compression Ratio | 9.5:1 | 8.8:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 2 doors |
| Vehicle Weight | 1320 kg | 1005 kg |
| Vehicle Length | 5110 mm | 3790 mm |
| Vehicle Width | 1850 mm | 1710 mm |
| Vehicle Height | 1500 mm | 1120 mm |
| Wheelbase Size | 2880 mm | 2340 mm |
| Fuel Consumption Overall | 11.9 L/100km | 8.5 L/100km |
| Fuel Tank Capacity | 81 L | 36 L |
